<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        *{
            margin: 0;
            padding: 0;
            list-style: none;
        }
        #box1{
            width: 1000px;
            height: 600px;
            background-color: rgb(107, 169, 239);
            margin: 100px auto 0;
            position: relative;
            background: url("../../img/login.png") no-repeat 0 0;
            background-size: 100% 100%;
        }
        #box1>ul{
            overflow: hidden;
            height: 600px;
            width: 300px;
            background-color: rgb(97, 97, 97,0.7);
            box-sizing: border-box;

        }
        #box1>ul>li{
            width: 300px;
            /* padding: 20px 0 20px 20px; */
            padding: 20px 0 20px 20px;
            /* background-color: antiquewhite; */
            color: #fff;
            font-weight: 300;
            
        }
        #box1>ul>li>span{
            float: right;
            margin-right: 50px;
            color: rgb(251, 251, 251);
            font-size: 24px;
            font-weight: 800;
        }
        #box1>ul>li:hover{
            background-color: rgb(115, 115, 115);
            cursor: pointer;
        }
        #box1>ul>li:nth-child(1):hover>div{
            display: block;
            opacity: 1;transition: all 0.5s ;z-index: 2;
        }
        #box1>ul>li:nth-child(1):hover>div>div{
            display: block;opacity: 1;
            transition: all 0.5s ;z-index: 2;
        }
        #box1 li:nth-child(1)>div{
            width: 600px;
            height: 600px;
            background-color: rgb(248, 248, 248);
            position: absolute;
            top: 0;
            right: 100px;
            overflow: hidden;
            /* display: none; */
            opacity: 0;
        }
        #box1 li:nth-child(1)>div>div{
            width: 190px;
            height: 120px;
            border: 1px solid rgb(90, 90, 90);
            float: left;
            margin-left: 6px;
            margin-top: 5px;
            /* display: none; */
            opacity: 0;
        }
        #box1>ul>li:nth-child(2):hover>div{
            display: block;
            opacity: 1;transition: all 0.5s ;z-index: 2;
        }
        #box1>ul>li:nth-child(2):hover>div>div{
            display: block;opacity: 1;
            transition: all 0.5s ;z-index: 2;
        }
        #box1 li:nth-child(2)>div{
            width: 600px;
            height: 600px;
            background-color: rgb(82, 245, 155);
            position: absolute;
            top: 0;
            right: 100px;
            overflow: hidden;
            /* display: none; */
            opacity: 0;
        }
        #box1 li:nth-child(2)>div>div{
            width: 190px;
            height: 120px;
            border: 1px solid rgb(234, 48, 48);
            float: left;
            margin-left: 6px;
            margin-top: 5px;
            /* display: none; */
            opacity: 0;
        }
        #box1>ul>li:nth-child(3):hover>div{
            display: block;
            opacity: 1;transition: all 0.5s ;z-index: 2;
        }
        #box1>ul>li:nth-child(3):hover>div>div{
            display: block;opacity: 1;z-index: 2;
            transition: all 0.5s ;
        }
        #box1 li:nth-child(3)>div{
            width: 650px;
            height: 600px;
            background-color: rgb(237, 140, 239);
            position: absolute;
            top: 0;
            right: 50px;
            overflow: hidden;
            /* display: none; */
            opacity: 0;
        }
        #box1 li:nth-child(3)>div>div{
            width: 190px;
            height: 130px;
            border: 1px solid rgb(78, 78, 78);
            float: left;
            margin-left: 6px;
            margin-top: 5px;
            /* display: none; */
            opacity: 0;
        }
        #box1>ul>li:nth-child(4):hover>div{
            display: block;
            opacity: 1;transition: all 0.5s ;z-index: 2;
        }
        #box1>ul>li:nth-child(4):hover>div>div{
            display: block;opacity: 1;
            transition: all 0.5s ;z-index: 2;
        }
        #box1 li:nth-child(4)>div{
            width: 650px;
            height: 600px;
            background-color: rgb(224, 111, 111);
            position: absolute;
            top: 0;
            right: 50px;
            overflow: hidden;
            /* display: none; */
            opacity: 0;
        }
        #box1 li:nth-child(4)>div>div{
            width: 190px;
            height: 130px;
            border: 1px solid rgb(78, 78, 78);
            float: left;
            margin-left: 6px;
            margin-top: 5px;
            /* display: none; */
            opacity: 0;
        }
        #box1>ul>li:nth-child(5):hover>div{
            display: block;z-index: 2;
            opacity: 1;transition: all 0.5s ;
        }
        #box1>ul>li:nth-child(5):hover>div>div{
            display: block;opacity: 1;
            transition: all 0.5s ;z-index: 2;
        }
        #box1 li:nth-child(5)>div{
            width: 650px;
            height: 600px;
            background-color: rgb(121, 121, 124);
            position: absolute;
            top: 0;
            right: 50px;
            overflow: hidden;
            /* display: none; */
            opacity: 0;
        }
        #box1 li:nth-child(5)>div>div{
            width: 190px;
            height: 130px;
            border: 1px solid rgb(78, 78, 78);
            float: left;
            margin-left: 6px;
            margin-top: 5px;
            /* display: none; */
            opacity: 0;
        }
        #box1>ul>li:nth-child(6):hover>div{
            display: block;z-index: 2;
            opacity: 1;transition: all 0.5s ;
        }
        #box1>ul>li:nth-child(6):hover>div>div{
            display: block;opacity: 1;
            transition: all 0.5s ;z-index: 2;
        }
        #box1 li:nth-child(6)>div{
            width: 600px;
            height: 600px;
            background-color: rgb(82, 245, 155);
            position: absolute;
            top: 0;
            right: 100px;
            overflow: hidden;
            /* display: none; */
            opacity: 0;
        }
        #box1 li:nth-child(6)>div>div{
            width: 190px;
            height: 120px;
            border: 1px solid rgb(234, 48, 48);
            float: left;
            margin-left: 6px;
            margin-top: 5px;
            /* display: none; */
            opacity: 0;
        }
        #box1>ul>li:nth-child(7):hover>div{
            display: block;z-index: 2;
            opacity: 1;transition: all 0.5s ;
        }
        #box1>ul>li:nth-child(7):hover>div>div{
            display: block;opacity: 1;
            transition: all 0.5s ;z-index: 2;
        }
        #box1 li:nth-child(7)>div{
            width: 600px;
            height: 600px;
            background-color: rgb(126, 197, 158);
            position: absolute;
            top: 0;
            right: 100px;
            overflow: hidden;
            /* display: none; */
            opacity: 0;
        }
        #box1 li:nth-child(7)>div>div{
            width: 190px;
            height: 120px;
            border: 1px solid rgb(234, 48, 48);
            float: left;
            margin-left: 6px;
            margin-top: 5px;
            /* display: none; */
            opacity: 0;
        }
        #box1>ul>li:nth-child(8):hover>div{
            display: block;z-index: 2;
            opacity: 1;transition: all 0.5s ;
        }
        #box1>ul>li:nth-child(8):hover>div>div{
            display: block;opacity: 1;z-index: 2;
            transition: all 0.5s ;
        }
        #box1 li:nth-child(8)>div{
            width: 600px;
            height: 600px;
            background-color: rgb(61, 170, 174);
            position: absolute;
            top: 0;
            right: 100px;
            overflow: hidden;
            /* display: none; */
            opacity: 0;
        }
        #box1 li:nth-child(8)>div>div{
            width: 190px;
            height: 120px;
            border: 1px solid rgb(234, 48, 48);
            float: left;
            margin-left: 6px;
            margin-top: 5px;
            /* display: none; */
            opacity: 0;
        }
        #box1>ul>li:nth-child(9):hover>div{
            display: block;
            opacity: 1;transition: all 0.5s ;z-index: 2;
        }
        #box1>ul>li:nth-child(9):hover>div>div{
            display: block;opacity: 1;
            transition: all 0.5s ;
            z-index: 2;
        }
        #box1 li:nth-child(9)>div{
            width: 600px;
            height: 600px;
            background-color: rgb(61, 170, 174);
            position: absolute;
            top: 0;
            right: 100px;
            overflow: hidden;
            /* display: none; */
            opacity: 0;
        }
        #box1 li:nth-child(9)>div>div{
            width: 190px;
            height: 120px;
            border: 1px solid rgb(234, 48, 48);
            float: left;
            margin-left: 6px;
            margin-top: 5px;
            /* display: none; */
            opacity: 0;
        }
        #box1>div{
            width: 700px;
            height: 600px;
            background-color: rgb(126, 197, 158);
            position: absolute;
            top: 0;
            right: 0    ;
            opacity: 0;
            /* pointer-events: none;   */
            /* 但是这个好像不需要 */
            /* 让这个 div 不响应鼠标事件 */
        }
    </style>
</head>
<body>
    <div id="box1">
            <ul>
                <li>手机<span>&gt;</span>
                <div>
                    <div></div>
                    <div></div>
                    <div></div>
                    <div></div>
                    <div></div>
                    <div></div>
                </div></li>
            <li>电视<span>&gt;</span>
                <div>
                    <div></div>
                    <div></div>
                    <div></div>
                    <div></div>
                    <div></div>
                    <div></div>
                </div></li>
            <li>家电<span>&gt;</span>
                <div>
                    <div></div>
                    <div></div>
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                    <div></div>
                    <div></div>
                </div></li>
            <li>笔记本<span>&gt;</span><div>
                <div></div>
                <div></div>
                <div></div>
                <div></div>
                <div></div>
                <div></div>
            </div></li>
            <li>电视<span>&gt;</span><div>
                <div></div>
                <div></div>
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            </div></li>
            <li>家电<span>&gt;</span><div>
                <div></div>
                <div></div>
                <div></div>
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                <div></div>
            </div></li>
            <li>笔记本<span>&gt;</span><div>
                <div></div>
                <div></div>
                <div></div>
                <div></div>
                <div></div>
                <div></div>
            </div></li>
            <li>出行<span>&gt;</span><div>
                <div></div>
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                <div></div>
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                <div></div>
            </div></li>
            <li>手机<span>&gt;</span><div>
                <div></div>
                <div></div>
                <div></div>
                <div></div>
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                <div></div>
            </div></li>
            </li>
        </ul>
        <div>

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    </div>
</body>
</html>